Question

Construct a triangle PQR given that PQ= 4.9 cm,angle P= 45° and angle Q= 60°. Measure angle R
explain solution please​

Answer 1

PQR is the required triangle

Step-by-step explanation:

• draw a line segment PQ = 4,.5 cm • with P as a center make an angle of 45 degree

• with Q as a center make an angle of 60 degrees

The point of intersection of both the rays

PX and QY will be the point R

then

we know that the sum of the angles of the triangle is 180°

therefore,

LP+ZQ+ZR = 180°

45+60+ ZR = 180°

ZR = 180° - 105°

ZR = 75°

hence, The ,measure of angle R is 75°

Answer 2

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